Tensions are boiling over with Russia.

After President Biden’s trip to Ukraine, Russian president Vladimir Putin suspended the country’s participation in the New START treaty, a nuclear arms control pact with the U.S.

Putin also warned of a “global war” as he doubled down on Ukraine, with threats of nuclear force. According to The Sun, “Moscow's nuclear doctrine clearly states their forces can use nuclear weapons when the country's "very existence" is at risk. Elsewhere in the speech, Putin also vowed Russia would ditch participation in a key arms control treaty - further ramping up the nuclear danger with the West.”

In response, U.S. Secretary of State Antony Blinken said, “We’ll be watching carefully to see what Russia actually does, we’ll of course make sure that in any event that we are posturing appropriately for the security of our own country and that of our allies,” as quoted by CNN. “I think it matters that we continue to act responsibly in this area… it’s also something the rest of the world expects of us.”